传统风格建筑钢-混凝土组合框架地震反应和耗能分析  

ENERGY DISSIPATION CAPACITY AND SEISMIC BEHAVIOR OF STEEL-CONCRETE COMPOSITE FRAME OF TRADITIONAL STYLE BUILDING

作　　者：吴琨[1] 赵轩[2] 薛建阳[2] 贾俊明[1] 翟磊[2] 刘祖强[2] WU Kun ZHAO Xuan XUEJxanyang JIA Junming ZHAI Lei LIU Zuqiang(Northwestern Architectural Design Institute Co. Ltd, Xi＇an 710018, China School of Civil Engineering,Xi＇an University of Architecture ＆ Technology, Xi＇an 710055, China)

机构地区：[1]中国建筑西北设计研究院有限公司,西安710018 [2]西安建筑科技大学土木工程学院,西安710055

出　　处：《工业建筑》2017年第10期26-31,7,共7页Industrial Construction

基　　金：国家科技支撑计划课题(2014BAL06B03);中建股份科技研发课题(CSCEC-2012-16);陕西省科学技术研究发展计划项目(2013KW23-01)

摘　　要：为研究传统风格建筑钢-混凝土组合框架的受力性能,制作了1榀1∶2平面缩尺框架并对其进行拟动力试验研究,对框架施加不同峰值加速度的El Centro地震波。通过分析模型的位移时程曲线、恢复力时程曲线及滞回曲线,探讨此类结构体系在地震作用下的破坏形式和耗能性能。试验结果表明:传统风格建筑钢-混凝土组合框架的穿插枋在水平地震作用下充当第一道抗震防线;位移时程曲线和恢复力时程曲线之间具有较好的协调性,滞回曲线出现一定程度的"捏拢"现象,最后发展成为"反S形",表现出剪切滑移特征。加载结束时,结构的等效黏滞阻尼比为0.065。结构进入弹塑性阶段,累积滞回耗能增幅不大,说明传统风格建筑钢-混凝土组合框架的整体耗能能力有限。In order to study the seismic behavior of the steel-concrete composite frame of traditional style building,one frame model with scale of 1 ∶ 2 was manufactured. El Centro earthquake waves with different peak acceleration were applied on the pseudo-dynamic test. By analyzing the displacement time-history curves,restoring force timehistory curves and hysteretic curves,the failure mode and energy dissipation performance of this kind of structure system under the action of earthquake were discussed. The experimental results showed that the penetrating tie of the traditional style building played the role of the first earthquake fortification under the horizontal seismic action.Displacement time history curves and restoring force time history curves had good coordination. The hysteresis curves appeared a certain degree of＂pinch approach＂phenomenon,finally developed into a＂inverse-S shaped＂with shearslip characteristics. The equivalent viscous damping ratio was 0. 065 at the end of the test. The structure cumulative hysteretic energy dissipation increased slowly in elastic-plastic stage. The analysis showed that the energy dissipation capacity of steel-concrete composite frame of traditional style building was limited.

关 键 词：传统风格建筑 钢-混凝土组合框架 拟动力试验 耗能能力 滞回曲线 

分 类 号：TU352.11[建筑科学—结构工程] TU398.9